My sandisk cruzer blade is not write protected and it is not mounted in ubuntu. I can't even format it using Disks utility in ubuntu. dmesg | tail info:
rishi@rishi:~$ dmesg | tail [192006.789212] sd 23:0:0:0: [sdb] Write Protect is off [192006.789217] sd 23:0:0:0: [sdb] Mode Sense: 03 00 00 00 [192006.789409] sd 23:0:0:0: [sdb] No Caching mode page found [192006.789413] sd 23:0:0:0: [sdb] Assuming drive cache: write through [192006.791486] sd 23:0:0:0: [sdb] No Caching mode page found [192006.791490] sd 23:0:0:0: [sdb] Assuming drive cache: write through [192006.798617] sdb: sdb1 [192006.799996] sd 23:0:0:0: [sdb] No Caching mode page found [192006.799999] sd 23:0:0:0: [sdb] Assuming drive cache: write through [192006.800001] sd 23:0:0:0: [sdb] Attached SCSI removable disk sudo fdisk -l info:
rishi@rishi:~$ sudo fdisk -l Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x7fa47cdf Device Boot Start End Blocks Id System /dev/sda1 * 2048 97656831 48827392 83 Linux /dev/sda2 97658878 625141759 263741441 5 Extended Partition 2 does not start on physical sector boundary. /dev/sda5 97658880 488476671 195408896 83 Linux /dev/sda6 504299520 625141759 60421120 83 Linux /dev/sda7 488478720 504295423 7908352 82 Linux swap / Solaris Partition table entries are not in disk order Disk /dev/sdb: 4004 MB, 4004511744 bytes 255 heads, 63 sectors/track, 486 cylinders, total 7821312 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x1decc276 Device Boot Start End Blocks Id System /dev/sdb1 * 63 7821311 3910624+ b W95 FAT32 fsck -n /dev/sdb info:
rishi@rishi:~$ sudo fsck -n /dev/sd sda sda1 sda2 sda5 sda6 sda7 sdb sdb1 rishi-2899@rishi-2899:~$ sudo fsck -n /dev/sdb fsck from util-linux 2.20.1 e2fsck 1.42.9 (4-Feb-2014) ext2fs_open2: Bad magic number in super-block fsck.ext2: Superblock invalid, trying backup blocks... fsck.ext2: Bad magic number in super-block while trying to open /dev/sdb The superblock could not be read or does not describe a valid ext2/ext3/ext4 filesystem. If the device is valid and it really contains an ext2/ext3/ext4 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 <device> or e2fsck -b 32768 <device> When i try to format using Disks utility it ends with error message. The error message follows.
Error setting partition type after formatting: Error setting partition flags on /dev/sdb1: Command-line `sfdisk --change-id "/dev/sdb" 1 0x0c' exited with non-zero exit status 1: /dev/sdb: No such file or directory sfdisk: cannot open /dev/sdb read-write (udisks-error-quark, 0) Can anyone help me.
--edit-- lsusb output:
rishi@rishi:~$ lsusb Bus 001 Device 003: ID 0a5c:5801 Broadcom Corp. BCM5880 Secure Applications Processor with fingerprint swipe sensor Bus 001 Device 002: ID 8087:8000 Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 002 Device 045: ID 04ca:0061 Lite-On Technology Corp. Bus 002 Device 003: ID 0c45:64d2 Microdia Bus 002 Device 057: ID 0781:556b SanDisk Corp. Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub 1 Answer
I have had some serious problems with my flash drives as well,
I ended up utilizing:
dd if=/dev/zero of=/dev/sdX bs=4096 status=progress where X is your drive. This is for block size issues encountered on usb after a corrupt ubuntu disk creator attempt.
Then used the fdisk to get it cleared.
sudo fdisk /dev/sdX Finally I used
mkfs.vfat /dev/sdX I'm sure not all of this was necessary but it worked for me.
